While teaching college students, one point I try to impress upon them is the the sheer size of the U.S. population, and its relationship to economics, markets, politics and public policy.
In a nutshell, the United States is an enormous, duty-free, standardized market, and there's perhaps no better example of just how big the nation is than cable TV.
Case in point, Sean Hannity's show on Fox News, weeknights at 9 p.m. EST. Hannity, a conservative commentator, can draw more than four million viewers nightly, and on a recent show he actually outdrew his colleague on Fox News, Bill O'Reilly, host of The O'Reilly Factor, the perennial ratings leader among cable TV commentary shows.
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